Maui International Double Star Conference 1

Transcription

1 Maui International Double Star Conference 1

2 Whence The WDS is 49/107/140 years old.. and can be traced back to the efforts of S.W. Burnham court reporter by day, amateur* astronomer by night (* except for 4 years as astronomer at Lick Obs.) Sherburne Wesley Burnham ( ) 2/27/2013 Maui International Double Star Conference 2

3 Whence The WDS is 49/107/140 years old.. and can be traced back to the efforts of S.W. Burnham court reporter by day, amateur* astronomer by night (* Well, other than 4 years at Lick Observatory.) Sherburne Wesley Burnham ( ) 2/27/2013 Maui International Double Star Conference 3

4 Whence Burnham s first publication (left) and his Magnum Opus (above) 2/27/2013 Maui International Double Star Conference 4

5 Whence BDS ADS (1932) ADS + SDS > IDS (1963) IAU 1964: decision to transfer database to USNO IDS WDS (1965) Eric Doolittle ( ) Robert Grant Aitken ( ) 2/27/2013 Maui International Double Star Conference 5

6 Whence SDS (1927) R. T. A. Innes ( ) Willem van den Bos ( ) Bernhard H. Dawson ( ) 2/27/2013 Maui International Double Star Conference 6

7 Whence ADS + SDS IDS (1963) Willem van den Bos ( ) Hamilton M. Jeffers ( ) Frances Greeby ( ) 2/27/2013 Maui International Double Star Conference 7

8 Whence IAU 1964: decision to transfer database to USNO IDS WDS (1965) Charles E. Worley ( ) 2/27/2013 Maui International Double Star Conference 8

9 Whence WDS now includes 125,000+ pairs 2/27/2013 Maui International Double Star Conference 9

10 Whither So what have we been up to lately? 2/27/2013 Maui International Double Star Conference 10

11 Whither 2000 present: addition of precise coordinates (on-going effort, 98.8% complete) Summer 2012: format change to data lines Greater precision for ρ, θ, magnitudes, errors Filter information (λ, λ ) Summer 2012: photometry from 2MASS, etc 124,560 additional 2MASS measures Fall 2012: UCAC4 matches to 60,000+ pairs (on-going) 61,822 astrometric measures 90,783 photometric measures (APASS) 2/27/2013 Maui International Double Star Conference 11

12 Whither 2000 present: addition of precise coordinates (on-going effort, 98.8% complete) Summer 2012: format change to data lines Greater precision for ρ, θ, magnitudes, errors Filter information (λ, λ ) Summer 2012: photometry from 2MASS, etc 124,560 additional 2MASS measures Fall 2012: UCAC4 matches to 60,000+ pairs (on-going) 61,822 astrometric measures 90,783 photometric measures (APASS) 2/27/2013 Maui International Double Star Conference 12

13 Whither 2000 present: addition of precise coordinates (on-going effort, 98.8% complete) Summer 2012: format change to data lines Greater precision for ρ, θ, magnitudes, errors Filter information (λ, λ ) Summer 2012: photometry from 2MASS, INT4, etc. 135,000 additional 2MASS measures Fall 2012: UCAC4 matches to 60,000+ pairs (on-going) 61,822 astrometric measures 90,783 photometric measures (APASS) 2/27/2013 Maui International Double Star Conference 13

14 Whither 2000 present: addition of precise coordinates (on-going effort, 98.8% complete) Summer 2012: format change to data lines Greater precision for ρ, θ, magnitudes, errors Filter information (λ, λ ) Summer 2012: photometry from 2MASS, INT4, etc. 135,000 additional 2MASS measures Fall 2012: UCAC4 matches to 65,000+ pairs (on-going) 67,000 astrometric measures 76,000 photometric measures (APASS) 2/27/2013 Maui International Double Star Conference 14

15 Whither 2/27/2013 Maui International Double Star Conference 15

16 Whither Still to come: UCAC proper motions and photometry Still to come: reformat of summary lines Greater precision for ρ, θ More space for components, spectral types More precise WDS designation? Drop DM number? Replace with what? Parallax? What else would be useful? Still to come: everything to web? 2/27/2013 Maui International Double Star Conference 16

17 Whither Still to come: UCAC proper motions and photometry Still to come: reformat of summary lines Greater precision for ρ, θ More space for components, spectral types More precise WDS designation? Drop DM number? Replace with what? Parallax? What else would be useful? Still to come: everything to web? 2/27/2013 Maui International Double Star Conference 17

18 Whither Still to come: UCAC proper motions and photometry Still to come: reformat of summary lines Greater precision for ρ, θ More space for components, spectral types More precise WDS designation? Drop DM number? Replace with what? Parallax? What else would be useful? Still to come: everything to web? 2/27/2013 Maui International Double Star Conference 18

19 Sources U.S. Naval Observatory Library NASA Astrophysics Data System Yerkes Observatory Photo Archives Yerkes Observatory, by Osterbrock Mary Lea Shane Archives of the Lick Observatory, UC Santa Cruz California Academy of Sciences Astronomy in South Africa, by Moore & Collins Eye on the Sky: Lick Observatory s First Century by Osterbrock, Gustafson & Unruh Sherburne Wesley Burham (obituary) by E.E. Barnard (Popular Astronomy, 29; 1921) Joe Tenn, AAS Historical Astronomy Division Maui International Double Star Conference